eufuhoworld

  Hiding Power Hiding power refers to an ink’s capacity to mask the substrate’s base color and surface defects. Even among black inks, performance varies drastically. When printed on aluminum foil, transparent film or dark paper, some blacks deliver sharp, opaque coverage with no show-through; others turn gray and translucent, requiring multiple overprints. Superior hiding power delivers solid jet black in a single coat, cutting ink consumption and enabling high-speed printing runs. Hiding power correlates directly with carbon black concentration, yet simply loading more carbon black is not a viable solution. Excess carbon black turns the ink into a thick paste and impairs leveling properties. True high hiding power stems from the tinting strength and color development of carbon black: high-structure carbon black binds larger volumes of binder resin to form a compact ink film. Paired with high-efficiency wetting and dispersing agents, numerous discrete carbon black particles can be...